What is the recommended course of action to avoid disruption of scheduled backup activities?

A customer received an alert that their Dell EMC PowerProtect DD appliance has reached 90% capacity. With the weekly increase of new data, they will reach 100% capacity in four weeks.

What is the recommended course of action to avoid disruption of scheduled backup activities?
A . Decrease the retention of the backups.
B . Expand the capacity of the PowerProtect DD appliance.
C . Remove the oldest backup cycles.
D . Increase the file system cleaning frequency.

Answer: B